What exactly happens?
In: 5
[I think this is a great starting point for your question about that.]([https://www.youtube.com/watch?v=chsGBhB5g7o](https://www.youtube.com/watch?v=chsGBhB5g7o)) In a nutshell, higher molecular-weight components of the fuel get oxidized while lighter ones evaporate off. The heavy stuff becomes “varnish” that interferes with carburetors. And people saying “ethanol” are dinosaurs who need to go back to school to learn what is right, and what is wrong, about what they’ve heard about gasoline in recent decades.
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